Abu al-Qasim al-Baghawi: I saw him and what I wrote about him
Abu Hatim al-Razi: Truthful
Abu Hatim ibn Habban al-Busti: Mentioned him among the trustworthy narrators
Abu Ya'la al-Khalili: Trustworthy, agreed upon
Ahmad ibn Hanbal: He was asked about him, so he said, 'Write about him, for I have written about him. He used to praise him.'
Ahmad ibn Shu'ayb al-Nasa'i: There is nothing wrong with him
Ibn Hajar al-'Asqalani: Truthful
al-Dhahabi: The Hafez, and he was called the Little Shu'bah
Salih ibn Ahmad al-Hamadhani: Ahmad ibn Hanbal used to praise him, and he was ascetic, and he had a bad temper with the narrators of Hadith
Abd al-Baqi ibn Qani' al-Baghdadi: Trustworthy
Abdullah ibn Ahmad ibn Hanbal: My father, if he was pleased with a man and he was trustworthy in his view, he would narrate from him while he was alive. So he narrated to us from al-Hakam ibn Musa while he was alive, and from Haytham ibn Kharijah, and Abu al-Ahwas, and Khalaf, and Shuja', and they were alive.
Authors of Tahrir Taqrib al-Tahdhib: Trustworthy, a large group of trustworthy narrators narrated from him, including al-Bukhari in al-Sahih, and Ibn Habban mentioned him among the trustworthy narrators, and we do not know of any criticism against him
Hisham ibn 'Ammar al-Dimashqi: We used to call him the Little Shu'bah
Yahya ibn Ma'in: Trustworthy